EE_PowerStrip

You can find this assignment on my Teachers folder, and hand it in through the Hand-in Robot.

In this activity, we will outfit a room with your ultimate entertainment system.

• Find at least six electrical devices, and their power rating.
• Make shapes in the space below for each device you choose, and label the shape with the name of the device and its peak wattage.
• Determine the total power (in watts) of all of the devices.
  • Divide by 120 (volts) to determine the current supplied to the system (in amps). OR
  • Use this sim to convert to amps.
• Determine whether your entertainment system would trip a 5-amp, 10-amp, 15-amp, or 20-amp circuit breaker.

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MBC Version
EE4: Power Strip
Standard home wiring can handle 15-amps of current without overheating and becoming a fire hazard. How many appliances can you put on a single power-strip without exceeding that limit? This link will allow you to convert from WATTS to AMPS: http://mbcurl.me/ESK6

1. Essay - Maximum Points: 5
List five of the appliances you found below, with their WATTS rating in parenthesis.

**Example: Conair 1875 Watt Turbo Styler with Ionic Conditioning by Conair (1875 Watts)


2. Essay - Maximum Points: 1
Find the total of all five of your devices, and divide by 120. That gives you the AMPS that will have to go through your electrical outlet. Will your devices trip the circuit breaker if they are all turned on at the same time?


Combinations
Some of these combinations trip the circuit breaker; some do not!

1. Multiple Choice - Maximum Points: 1
If you plug in these two devices, will they trip a 15-amp circuit breaker?

Coffee maker (1200 W) and Hair dryer (1800 W)
Coffee maker (1200 W) and Microwave oven (1100 W)
Coffee maker (1200 W) and Refrigerator (725 W)
Coffee maker (1200 W) and HDTV (120 W)
Coffee maker (1200 W) and Stereo (400 W)
Hair dryer (1800 W) and Microwave oven (1100 W)
Hair dryer (1800 W) and Refrigerator (725 W)
Hair dryer (1800 W) and HDTV (120 W)
Hair dryer (1800 W) and Stereo (400 W)
Microwave oven (1100 W) and Refrigerator (725 W)
Microwave oven (1100 W) and HDTV (120 W)
Microwave oven (1100 W) and Stereo (400 W)
Refrigerator (725 W) and HDTV (120 W)
Refrigerator (725 W) and Stereo (400 W)
HDTV (120 W) and Stereo (400 W)

Yes, they will.
No, they won't.


Explanation
Explain why certain combinations trip and others do not.

1. Essay - Maximum Points: 1
How did you know whether a combination of appliances would trip the circuit or not? (Your answer needs to have some mathematical reasoning in order to be correct.)